/*
 * Copyright (c) 2020-2023 Huawei Cloud Computing Technology Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 *    conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 *    of conditions and the following disclaimer in the documentation and/or other materials
 *    provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.huaweicloud.sdk.iot.device.client.handler;

import com.huaweicloud.sdk.iot.device.client.DeviceClient;
import com.huaweicloud.sdk.iot.device.client.requests.DeviceMessage;
import com.huaweicloud.sdk.iot.device.client.requests.RawDeviceMessage;
import com.huaweicloud.sdk.iot.device.transport.RawMessage;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class MessageHandler implements MessageReceivedHandler {
    private static final Logger log = LogManager.getLogger(MessageHandler.class);

    private final DeviceClient deviceClient;

    public MessageHandler(DeviceClient deviceClient) {
        this.deviceClient = deviceClient;
    }

    @Override
    public void messageHandler(RawMessage message) {
        RawDeviceMessage rawDeviceMessage = new RawDeviceMessage(message.getPayload());
        DeviceMessage deviceMessage = rawDeviceMessage.toDeviceMessage();
        boolean isSystemFormat = (deviceMessage != null);

        if (deviceClient.getRawDeviceMessageListener() != null) {
            log.debug("receive message in custom format:  {}", message);
            deviceClient.getRawDeviceMessageListener().onRawDeviceMessage(rawDeviceMessage);
        }

        if (isSystemFormat) {
            log.debug("receive message in system format: {}", message);
            boolean isCurrentDevice = (deviceMessage.getDeviceId() == null
                    || deviceMessage.getDeviceId().equals(deviceClient.getDeviceId()));

            if (deviceClient.getDeviceMessageListener() != null && isCurrentDevice) {
                deviceClient.getDeviceMessageListener().onDeviceMessage(deviceMessage);
                return;
            }
            deviceClient.getDevice().onDeviceMessage(deviceMessage);
        }
    }
}
